Strain relief clamp and assembly

ABSTRACT

There is disclosed a strain relief clamp and assembly for limiting relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors, the clamp assembly comprising a strain relief clamp including at least two body members each having a part-cylindrical connector body portion and a part-cylindrical cable body portion and an interconnecting portion joining the connector body portion and the cable body portion, a first binder tie clamping the connector body portions about the connector to provide engagement between locking structure on the connector body portion and the retaining structure, a second binder tie clamping the cable body portions about the cable at a predetermined position therealong, hinges interconnecting the two body members, and binder tie positioning structure provided on the connector body portions and the cable body portions.

United States Patent Caveney et al.

Jan. 25, 1972 Primary Examiner-Richard E. Moore Attorney-Prangley,Clayton, Mullin, Dithmar and Vogel [72] Inventors: Jack E. Caveney,Chicago; Roy A. Moody, ABSTRACT Flossmoor, both of Ill. I There isdisclosed a strain relief clamp and assembly for limit- [73] Asslgnee:Pandm Corp" Tmley Park ing relative movement between a generallycylindrical con- [22] Filed; Jam 12, 1970 nector having retainingstructure thereon and a cable of electrical conductors, the clampassembly comprising a strain re- 1 PP 2,079 lief clamp including atleast two body members each having a part-cylindrical connector bodyportion and a pan-cylindrical cable body portion and an interconnectingportion joining the affiggg connector body portion and the cable bodyportion, a first 581 Field ofSearch ..339/l03 104 107 62 206 16connector to provide engagement between locking structure on theconnector body portion and the retaining structure, a [56] ReferencesCited second binder tie clamping the cable body portions about the cableat a predetermined position therealong, hinges intercon- UNITED STATESPATENTS necting the two body members, and binder tie positioning 1 292 9H1919 St 339/103 C structure provided on the connector body portions andthe cable bod ortions. 1,675,763 7/1928 McCarthy.. ..339/103 y p2,830,282 4/1958 Swan et al ....339/l0l X 24 Claims, 10 Drawing Figures3,272,913 9/1966 Crimmins et a1 ..339/107X r n n one I00 52 50- l [24I25 t I83 /30 l I 34 PATENTED JANZS 1912 sumlarz FIG./

I70 124 I72 I00 7 INVENTORS JACK E. CAVENEY ROY A. MOODY ATTYS.

STRAIN RELIEF CLAMP AND ASSEMBLY The present invention is directed to animproved strain relief clamp and a strain relief clamp assemblyincorporating the clamp, the assembly sewing to limit the relativemovement between a generally cylindrical connector and a cable ofelectrical conductors.

It is an important object of the present invention to provide a strainrelief clamp for use in a strain relief clamp assembly to limit therelative movement between a generally cylindrical connector havingretaining structure thereon and a cable of electrical connectors whereinthe strain relief clamp is held in operative position by first andsecond binder ties disposed thereabout, the strain relief clampcomprising an essentially part-cylindrical connector body portion and anessentially part-cylindrical cable body portion and an interconnectingportion joining the connector body portion and the cable body portion,the strain relief clamp in use being arranged with the connector bodyportion disposed about the associated connector and clampingly heldthereon by the first associated binder tie and with the cable bodyportion disposed about the associated cable and clampingly held thereonby the second associated binder tie, locking structure on the innersurface of the connector body portion for engagement with the retainingstructure on the associated connector, first binder tie positioningstructure on the outer surface of the connector body portion andcooperating to hold the first associated binder tie in a predeterminedlongitudinal position with respect to the connector body portion, and asecond binder tie positioning structure on the outer surface of thecable body portion and cooperating to hold the associated second bindertie in a predetermined longitudinal position with respect to the cablebody portion.

Another object of the invention is to provide a strain relief clamp ofthe type set forth formed of a synthetic organic plastic resin and moreparticularly one molded or nylon resin.

Another object of the invention is to provide a strain relief clamp ofthe type set forth wherein the connector body portion is essentiallysemicylindrical in shape.

Another object of the invention is to provide a strain relief clamp ofthe type set forth wherein the locking structure is in the form oftransversely arranged locking ridges, which ridges may be helical inform or alternatively wherein the locking structure is in the form of atransversely arranged projection along the inner surface of theconnector body portion.

Another object of the invention is to provide an improved strain reliefclamp of the type set forth including at least two body members eachhaving an essentially part-cylindrical connector body portion and anessentially part-cylindrical cable body portion and an interconnectingportion joining the connector body portion and the cable body portion,the several portions named having the construction and functioning asset forth hereinabove.

In connection with the prior object, it is another object of theinvention to provide a strain relief clamp of the type set forth andfurther including hinge structure interconnecting the body members andaccommodating movement thereof into positions wherein the connector bodyportions are arranged in generally cylindrical form and the cable bodyportions are arranged as on the surface of a cylinder.

In connection with the foregoing object, it is another object of theinvention to provide a strain relief clamp of the type set forth whereinthe hinge structure interconnecting the connector body portions is inthe form of two longitudinally spacedapart hinge members, the strainrelief clamp being molded of a synthetic organic plastic resin with thefree longitudinal edges of the body members disposed in a common plane.

Still another object of the invention is to provide a strain reliefclamp of the type set forth wherein each of the cable body portions hasan opening therein for receiving therethrough the associated secondbinder tie, the second binder tie in use being disposed around andengaging the outer surfaces of the cable body portions and extendingthrough the openings and through the associated cable for clampinglyholding the cable body portions about the cable ata predeterminedposition therealong.

A further object of the invention is to provide an improved strainrelief clamp assembly incorporating therein an improved strain reliefclamp of the type set forth above.

Further features of the invention pertain to the particular arrangementof the parts of the strain relief clamp and of the assemblyincorporating the strain relief clamp therein, whereby theabove-outlined and additional operating features thereof are attained.

The invention, both as to its organization and method of operationtogether with further objects and advantages thereof, will best beunderstood by' reference to the following specification when taken inconnection with the accompanying drawings, in which:

FIG. 1 is a view of a strain relief clamp assembly made in accordancewith and embodying the principles of the present invention, the clampassembly thereillustrated incorporating therein a first preferredembodiment of the strain relief clamp of the present invention;

FIG. 2 is a plan view of the strain relief clamp assembly of FIG. 1;

FIG. 3 is a view on an enlarged scale in cross section through the clampassembly of FIG. 1 along the line 3-3 thereof;

FIG. 4 is a perspective view of the strain relief clamp illustrated inFIGS. 1 to 3;

FIG. 5 is a side elevational view of the strain relief clamp of FIGS. 1to 4;

FIG. 6 is a plan view of the strain relief clamp of FIG. 5;

FIG. 7 is an end view of the strain relief clamp of FIG. 5 as seen inthe direction of the arrows along the line 7-7 thereof, one of the bodymembers of the strain relief clamp being shown in dashed lines toillustrate the molded position thereof;

FIG. 8 is a cross-sectional view on an enlarged scale of the strainrelief clamp of FIG. 6 along the line 8--8 thereof;

FIG. 9 is a fragmentary view in section through FIG. 8 along the line 99thereof; and

FIG. 10 is a view in section illustrating a second embodiment of thestrain relief clamp of the present invention.

Referring to FIGS. 1 to 3 of the drawings, there is illustrated a strainrelief clamp assembly interconnecting a connector 50 and a cable 60, theclamp assembly 100 including a strain relief clamp and two binder ties170 and 180 respectively holding the strain relief clamp 100 about theconnector 50 and the cable 60. As illustrated, the connector 50 is ofthe type made in accordance with military specification MIL-026500 andincludes a generally cylindrical body 51 carrying thereon a shoulder 52adjacent to which there are disposed a plurality of helically arrangedretaining grooves (not shown). The cable 60 is formed of a plurality ofinsulated electrical conductors 61, the terminal ends of which aredisposed to the left in FIG. 1 and soldered, crimped or otherwiseconnected to terminal pins sealingly received and mounted in theconnector 50. The clamp assembly 100 serves to provide a mechanicalconnection directly from the body of the cable 60 to the connector 50 soas to prevent bending of the conductors at the terminal pins and thus torelieve any strain upon the electrical connections between the terminalends of the conductors 61 and the terminal pins in the connector 50.

Referring specifically to FIGS. 4 to 9 of the drawings. the strainrelief clamp 110 of the present invention is illustrated and comprises apair of body members and which are interconnected by hinge members and161. The body member 120 in turn includes an essentially semicylindricalconnector body portion 121 having an essentially semicylindrical outersurface 122 and an essentially semicylindrical inner surface 123.Disposed on the outer surface 122 and extending radially outwardlytherefrom are two longitudinally spaced-apart beads 124 and 125 whichcooperate with each other and with the intervening portion of the outersurface 122 to define a groove which is useful to position theassociated binder tie 171 as will be explained more fully hereinafter.Disposed on the inner surface 123 is a plurality of locking ridges 126,the locking ridges actually being portions of a helical thread whichcooperate with the retaining grooves on the connector 50 to increase theclamping connection therebetween. The inner surface 123 terminates in ashoulder 127 disposed toward the right in FIG. 8 and joins a generallysemicylindrical surface 128.

The body member 120 further comprises a part-cylindrical cable bodyportion 130 having a part-cylindrical outer surface 131 and apart-cylindrical inner surface 132. Disposed on the outermost end of theouter surface 131, i.e., the end disposed to the right in FIGS. 5, 6 and8, is a bead 134 which is useful in holding the second binder tie 180 inthe clamping position, all as will be explained more fully hereinafter.Disposed in the cable body portion 130 is a longitudinally extendingslot 135 which also receives the second binder tie 180 therethrough aswill be explained later.

Joining the connector body portion 121 and the cable body portion 130 isan interconnecting portion 136, the interconnecting portion 136 havingan outer surface 137 shaped as the surface of a cone and an innersurface 138 also shaped as the surface of a cone, the surface 137merging into the surface 122 and the surface 138 merging into thesurface 128.

A second body member 140 is provided as a part of the strain reliefclamp 110, the body member 140 including an essentially semicylindricalconnector body portion 141 having an essentially semicylindrical outersurface 142 and an essentially semicylindrical inner surface 143.Disposed on the outer surface 122 and extending radially outwardlytherefrom are two longitudinally spaced-apart beads 144 and 145 whichcooperate with each other and with the intervening portion of the outersurface 142 to define a groove which is useful to position theassociated binder tie 171 as will be explained more fully hereinafter.Disposed on the inner surface 143 is a plurality of locking ridges 146,the locking ridges actually being portions of a helical thread whichcooperate with the retaining grooves on the connector 50 to increase theclamping connection therebetween. The inner surface 143 terminates in ashoulder 147 disposed toward the right in FIG. 8 and joins a generallysemicylindrical surface 148.

The body member 140 further comprises a part-cylindrical cable bodyportion 150 having a part-cylindrical outer surface 151 and apart-cylindrical inner surface 152. Disposed on the outermost end of theouter surface 151, i.e., the end disposed to the right in FIGS. 5, 6 and8, is a bead 154 which is useful in holding the second binder tie 180 inthe clamping position, all as will be explained more fully hereinafter.Disposed in the cable body portion 150 is a longitudinally extendingslot 155 which also receives the second binder tie 180 therethrough aswill be explained later.

Joining the connector body portion 141 and the cable body portion 150 isan interconnecting portion 156, the interconnecting portion 156 havingan outer surface 157 shaped as the surface of a cone and an innersurface 158 also shaped as the surface of a cone, the surface 157merging into the surface 142 and the surface 158 merging into thesurface 148.

The body members 120 and 140 are interconnected by two longitudinallyspaced-apart hinge members 160 and 161, the hinge member 160 beingdisposed to the left as viewed in FIGS. 8 and 9 and at theleft-hand-most end of the strain relief clamp 110, while the hingemember 161 is disposed essentially in alignment with the bead 125. Thehinge members 160 and 161 are essentially semicylindrical in crosssection as viewed in FIG. 9 and are formed integral with the respectivebody members 120 and 140.

The strain relief clamp 110 is preferably formed of a synthetic organicresin, the preferred resin being nylon resin, and is molded integral andof one-piece construction. Referring to FIG. 7, the position of the bodymembers 120 and 140 as molded is illustrated wherein the body member 120is illustrated by dashed lines in the as-molded position while the bodymember 140 is illustrated by solid lines in the as-molded position. Itwill be appreciated that the longitudinally extending free edges of thebody members 120 and 140 all lie along a common plane in the as-moldedposition, i.e., more specifically, the longitudinal edges of theconnector body portions 121 and 141 are disposed in a common plane inthe as-molded positions thereof. Subsequent to molding, the body memberis pivoted with respect to the body member through substantially a 180are about the hinge members 160 and 161 from the dashed line portion ofFIG. 7 to the solid line portion of FIG. 7.

Because of the material of construction of the strain relief clamp 110,i.e., a resilient organic plastic resin such as nylon resin, theinterconnecting portions 136 are essentially flexible and deformable,whereby the cable body portions 130 and can be moved toward and awayfrom each other and with respect to the as-molded positions thereof,thereby to accommodate therebetween cables 60 of widely differenteffective diameters. t

The binder ties 170 and 180 may be of any suitable construction, but onepreferred construction is that illustrated in U.S. Pat. No. 3,197,829granted Aug. 3, 1965 to Jack E. Caveney and Roy A. Moody for BINDERSTRAP and another preferred construction illustrated in the copendingU.S. Pat. application of Jack E. Caveney, Ser. No. 750,570 filed Aug. 6,1968 for INTEGRAL ONE-PIECE CABLE TIE, now U.S. Pat. No. 3,537, I 46. Asillustrated, the binder tie 170 is formed of nylon plastic and includesa strap 171 carrying on one end thereof and integral therewith a lockinghead 172. The binder tie 180 likewise is formed of nylon plastic andincludes a strap 181 carrying on one. end thereof and integral therewitha locking head 182, the strap 181 for illustrative purposes having beenshown as comprising sections 183 through 186 in FIG. 3 as will beexplained more fully hereinafter.

The binder ties 170 and 180 may be manually applied, but preferably areapplied by a tool such as that illustrated in U.S. Pat. No. Re. 26,492granted Nov. 12, 1968 to Jack E. Caveney and Roy A. Moody for BINDERSTRAP TOOL, or the tool illustrated in U.S. Pat. No. 3,254,680 grantedJune 7, 1966 to Jack E. Caveney and Roy A. Moody for STRAP-TENSION- INGTOOL, or that illustrated in the copending U.S. Pat. application, Ser.No. 870,190, filed July 28, I969 for STRAP- TENSIONING AND SEVERINGTOOL, which application is a continuation of U.S. Ser. No. 772,441.

In use, the strain relief clamp 110 may typically be received in theas-molded position of the parts thereof, i.e., with the body member 120in the dashed position of FIG. 7 connected by the hinge members and 161to the body member 140. The user folds the body members 120 and 140toward the solid line positions in FIG. 7 to assemble the strain reliefclamp 110 about the associated connector 50 and the associated cable 60.As a result, the connector body portions 121 and 141 are assembled aboutthe adjacent end of the connector 50 thus to place the locking ridges126 and 146 into the complementarily shaped retaining grooves on theconnector 50. The cable body portions 130 and 150 are simultaneouslyassembled adjacent to the outer periphery of the cable 60. The bindertie is then placed around the connector body portions 121 and 141 in thegroove defined by the beads 124-144 and 125-145, the free end of thestrap 171 being passed through the locking head 172, after which thebinder tie 170 is drawn tight and the excess strap 171 typically severedat a point just beyond the clamping head 172.

The binder tie is then applied, the strap 181 being fed through andaround the cable 60 so that the parts are then in the position asillustrated in FIG. 3, i.e., the strap 181 extends from the locking head182 along a strap section 183 and over the outer surfaces 131 and 151 tothe opening 155. A strap section 184 extends through the opening 155 andthrough the center of the cable 60 and through the opening 135. Thestrap then continues along a strap section 185 in a clockwise directionfrom the opening 135 completely around the cable 60 and the cable bodyportions 130 and 150 to the locking head 182, a portion 186 of the strapextending through the head 182. It will be appreciated that in applyingthe binder tie 180, the strap 181 is tightened, preferably mechanicallyby a tool to press the cable body portions 130 and 150 firmly againstthe cable 60, the free end of the strap section 186 being severed afterthe binder tie 180 has been fully tightened. The binder tie 180 isfurther held in position by the bead 134.

The resultant strain relief clamp assembly 100 serves to pass anymechanical forces applied between the connector 50 and the cable 60through the strain relief clamp 110, i.e., directly between the positionon the connector 50 at which the connector body portions 121 and 141 areclamped by the binder tie 170 to the position on the cable 60 at whichthe cable body portions 130 and 150 are clamped by the binder tie 180.More specifically, the strain relief clamp 110 positively preventsbending motion between the terminal ends of the conductors 61 and theterminal pins in the connector 50 to which the terminal ends of theconductors 61 are attached. As a consequence, there is no tendency tocause failure at these connections because of such bending motion, andlikewise the sealing connection between the terminal pins and theconnector 50 is preserved in the sealed condition thereof. In fact, allmechanical forces transmitted between the connector 50 and the cable 60are transmitted directly through the strain relief clamp 110 and aroundthe connections between the terminal ends of the conductors 61 and theterminal pins connected thereto and sealingly mounted in the connector50.

The strain relief clamp 110 can be applied to the cable 60 with theterminal ends of the conductors 61 already soldered in place withoutrequiring that the individual conductors 61 be threaded through theclamp prior to soldering. When it is necessary to repair, replace, oradd conductors 61 in the cable 60, the strain relief clamp assembly 100provides ready access, the binder ties 170 and 180 being formed ofplastic can be readily severed to permit removal of the strain reliefclamp 110. Accordingly, access can be readily gained to the pinreceptacle of the connector 50 to aid or remove individual pins andcontacts without disturbing other pins and contacts. This is true evenif there is limited space available such as in aircraft installations,since the strain relief clamp 110 can be readily removed in alldirections, and need not be backed off" as is the case with certainconventional strain relief clamps known in the art heretofore.

The strain relief clamp 110 is useful in many installations whereinsteel and other metal clamps have been utilized heretofore. The strainrelief clamp 110 being made of plastic by high production methods issubstantially less expensive than steel clamps and other metal clamps,and furthermore is substantially lighter in weight than steel clamps ofthe same general utility, the strain relief clamp 110 being only aboutone-quarter as heavy as a comparable steel clamp. Accordingly, thestrain relief clamp 110 can be utilized in those applications, such asaircraft applications, where weight is a significant factor. The factthat the strain relief clamp assembly 100 is formed entirely of plasticfurther makes the assembly 100 particularly useful in aircraftapplications since there are no metallic parts that could causeelectrical malfunctions if parts of the assembly 100 were lost duringinstallation and/or removal.

There is illustrated in FIG. of the drawings the second preferredembodiment of a strain relief clamp 210 made in accordance with thepresent invention, a single-body member 220 having been illustrated, itbeing understood that the other body member would be made essentiallyidentical thereto. Since most of the construction of the body member 220is identical to that of the body member 120, like reference numerals inthe 200 series have been applied to the parts in the body member 220that correspond to like parts at the body member 120. The fundamentaldifference between the body member 120 and the body member 220 residesin the locking structure on the inner surface of the connector bodyportion 221, there being illustrated an inwardly directed rib orprojection 226 disposed transversely with respect to the longitudinalaxis of the strain relief clamp 210 and extending around the innersurface 223. It will be appreciated that the rib 226, which isessentially rectangular in cross section, would be received in acomplementarily shaped groove in the associated connector to which thestrain relief clamp 210 would be applied. In all other respects, thestrain relief clamp 210 is constructed and is utilized in the samemanner as the strain relief clamp described above.

While there have been described what are at present considered to be thepreferred embodiments of the invention, it will be understood thatvarious modifications may be made therein, and it is intended to coverin the appended claims all such modifications as fall within the truespirit and scope of the invention.

We claim:

1. A strain relief clamp assembly for limiting the relative movementbetween a generally cylindrical connector having retaining structurethereon and a cable of electrical conductors coupled to the connector,said clamp assembly comprising a strain relief clamp including anessentially part-cylindrical connector body portion and an essentiallypart-cylindrical cable body portion and an interconnecting portionjoining said connector body portion and said cable body portion, saidstrain relief clamp in use being arranged with said connector bodyportion clampingly engaging the associated connector and said cable bodyportion clampingly engaging the associated cable, locking structure ofthe inner surface of said connector body portion for engagement with theretaining structure on the associated connector, a first binder tiedisposed around and engaging the outer surface of said connector bodyportion for clampingly holding said connector body portion about theassociated connector with said locking structure engaging the retainingstructure, first binder tie positioning structure on the outer surfaceof said connector body portion for holding said first binder tie in apredetermined longitudinal position with respect to said connector bodyportion, said cable body portion having an opening therein for receivingtherethrough a binder tie, and a second binder tie disposed around andengaging the outer surface of said cable body portion and extendingthrough said opening in position to extend between the conductors of theassociated cable for clampingly holding said cable body portion aboutthe cable at a predetermined position therealong.

2. The strain relief clamp assembly set forth in claim I, wherein saidopening in said cable body portion is in the form of an elongated slotextending longitudinally of said strain relief clamp.

3. The strain relief clamp assembly set forth in claim 2, and furthercomprising a second binder tie positioning structure on the outersurface of said cable body portion cooperating to hold said secondbinder tie in a predetermined longitudinal position with respect to saidcable body portion.

4. A strain relief clamp assembly for limiting the relative movementbetween a generally cylindrical connector having retaining structurethereon and a cable of electrical conductors coupled to the connector,said clamp assembly comprising a strain relief clamp including at leasttwo body members each having an essentially part-cylindrical connectorbody portion and an essentially part-cylindrical cable body portion andan interconnecting portion joining said connector body portion and saidcable body portion, said strain relief clamp in use being arranged withsaid connector body portion clampingly engaging the associated connectorand said cable body portion clampingly engaging the associated cable,locking structure on the inner surface of each of said connector bodyportions for engagement with the retaining structure on the associatedconnector, a first binder tie disposed around and engaging the outersurfaces of said connector body portions for clampingly holding saidconnector body portions about the associated connector with said lockingstructure engaging the retaining structure, first binder tie positioningstructure on the outer surface of each of said connector body portionsand cooperating to hold said first binder tie in a predeterminedlongitudinal position with respect to said connector body portions, asecond binder tie disposed around and engaging the outer surfaces ofsaid cable body portions for clampingly holding said cable body portionsabout the cable at a predetermined position therealong, and secondbinder tie positioning structure on the outer surface of each of saidcable body portions and cooperating to hold said second binder tie in apredetermined longitudinal position with respect to said cable bodyportions.

5. A strain relief clamp assembly for limiting the relative movementbetween a generally cylindrical connector having retaining structurethereon and a cable of electrical conductors coupled to the connector,said clamp assembly comprising a strain relief clamp including at leasttwo body members each having an essentially part-cylindrical connectorbody portion and an essentially part-cylindrical cable body portion andan interconnecting portion joining said connector body portion and saidcable body portion, hinge structure interconnecting said body membersand accommodating movement thereof into positions wherein said connectorbody portions are arranged in generally cylindrical form and said cablebody portions are arranged on the surface of a cylinder, said strainrelief clamp in use being arranged with said connector body portionsclampingly engaging the associated connector and said cable bodyportions clampingly engaging the associated cable, locking structure onthe inner surface of each of said connector body portions for engagementwith the retaining structure on the associated connector, a first bindertie disposed around and engaging the outer surfaces of said connectorbody portions for clampingly holding said connector body portions aboutthe associated connector with said locking structure engaging theretaining structure, first binder tie positioning structure on the outersurface of each of said connector body portions and cooperating to holdsaid first binder tie in a predetermined longitudinal position withrespect to said connector body portions, a second binder tie disposedaround and engaging the outer surfaces of said cable body portions forclampingly holding said cable body portions about the cable at apredetermined position therealong, and second binder tie positioningstructure on the outer surface of each of said cable body portions andcooperating to hold said second binder tie in a predeterminedlongitudinal position with respect to said cable body portions.

6. The strain relief clamp assembly set forth in claim 5, wherein saidhinge structure interconnects said connector body portions.

7. The strain relief clamp assembly set forth in claim 6, wherein saidhinge structure includes a pair of hinge members integral with theassociated connector body portions.

8. The strain relief clamp assembly set forth in claim 5, wherein saidstrain relief clamp ismolded of a synthetic organic plastic resin withthe free longitudinal edges of said body members disposed in a commonplane and interconnected by said hinge structure.

9. A strain relief clamp assembly for limiting the relative movementbetween a generally cylindrical connector having retaining structurethereon and a cable of electrical conductors coupled to the connector,said clamp assembly comprising a strain relief clamp including at leasttwo body members each having an essentially part-cylindrical connectorbody portion and an essentially part-cylindrical cable body portion andan interconnecting portion joining said connector body portion and saidcable body portion, said strain relief clamp in use being arranged withsaid connector body portions clampingly engaging the associatedconnector and said cable body portions clampingly engaging theassociated cable, locking structure on the inner surface of each of saidconnector body portions for engagement with the retaining structure onthe associated connector, a first binder tie disposed around andengaging the outer surfaces of said connector body portions forclampingly holding said connector body portions about the associatedconnector with said locking structure engaging the retaining structure,first binder tie positioning structure on the outer surface of each ofsaid connector body portions and cooperating to hold said first bindertie in a predetermined longitudinal position with respect to saidconnector body portions, each of said cable body portions having anopening therein for receiving therethrough a binder tie, and a secondbinder tie disposed around and engaging the outer surfaces of said cablebody portions and extending through said openings in position to extendbetween the conductors of the associated cable for clampingly holdingsaid cable body portions about the cable at a predetermined positionedtherealong.

10. The strain relief clamp assembly set forth in claim 9, wherein saidopening in each of said cable body portions is in the form of anelongated slot extending longitudinally of said strain relief clamp.

11. The strain relief clamp assembly set forth in claim 10, and furthercomprising a second binder tie positioning structure on the outersurface of each of said cable body portions cooperating to hold saidsecond binder tie in a predetermine longitudinal position with respectto said cable body portions.

12. A strain relief clamp for use in a strain relief clamp assembly tolimit the relative movement between a generally cylindrical connectorhaving retaining structure thereon and a cable of electrical conductorscoupled to the connector wherein the strain relief clamp is held inoperative position by first and second binder ties disposed thereabout,said strain relief clamp comprising an essentially part-cylindricalconnector body portion and an essentially part-cylindrical cable bodyportion and an interconnecting portion joining said connector bodyportion and said cable body portion, said strain relief clamp in usebeing arranged with said connector body portion disposed about theassociated connector and clampingly held thereon by the first associatedbinder tie and with said cable body portion disposed about theassociated cable and clampingly held thereon by the second associatedbinder tie, locking structure on the inner surface of said connectorbody portion for engagement with the retaining structure on theassociated connector, and first binder tie positioning structure on theouter surface of said connector body portion for holding the firstassociated binder tie in a predetermined longitudinal position withrespect to said connector body portion, said cable body portion havingan openingtherein for receiving therethrough the associated secondbinder tie, the second binder tie in use being disposed around andengaging the outer surface of said cable body portion and extendingthrough said opening and between the conductors of the associated cablefor clampingly holding said cable body portion about the cable at apredetermined position therealong.

13. The strain relief clamp set forth in claim 12, wherein said openingin said cable body portion is in the form of an elongated slot extendinglongitudinally of said strain relief clamp.

14. The strain relief clamp set forth in claim 13, and furthercomprising a second binder tie positioning structure on the outersurface of said cable body portion for holding the associated secondbinder tie in a predetermined longitudinal position with respect to saidcable body portion.

15. A strain relief clamp for use in a strain relief clamp assembly tolimit the relative movement between a generally cylindrical connectorhaving retaining structure thereon and a cable of electrical conductorscoupled to the connector wherein the strain relief clamp is held inoperative position by first and second binder ties disposed thereabout,said strain re lief clamp comprising at least two body members eachhaving an essentially part-cylindrical connector body portion and anessentially part-cylindrical cable body portion and an interconnectingportion joining said connector body portion and said cable body portion,said strain relief clamp in use being arranged with said connector bodyportion disposed about the associated connector and clampingly heldthereon by the first associated binder tie and with said cable bodyportion disposed about the associated cable and clampingly held thereonby the second associated binder tie, locking structure on the innersurface of each of said connector body portions for engagement with theretaining structure on the associated connector, first binder tiepositioning structure on the outer surface of each of said connectorbody portions and cooperating to hold the first associated binder tie ina predetermined longitudinal position with respect to said connectorbody portions, and second binder tie positioning structure on the outersurface of each of said cable body portions and cooperating to hold theassociated second binder tie in a predetermined longitudinal positionwith respect to said cable body portions.

16. A strain relief clamp for use in a strain relief clamp assembly tolimit the relative movement between a generally cylindrical connectorhaving retaining structure thereon and a cable of electrical conductorscoupled to the connector wherein the strain relief clamp is held inoperative position by first and second binder ties disposed thereabout,said strain relief clamp comprising at least two body members eachhaving an essentially part-cylindrical connector body portion and anessentially part-cylindrical cablebody portion and an interconnectingportion joining said connector body portion and said cable body portion,hinge structure interconnecting said body members and accommodatingmovement thereof into positions wherein said connector body portions arearranged in generally cylindrical form and said cable body portions arearranged as on the surface of a cylinder, said strain relief clamp inuse being arranged with said connector body portions disposed about theassociated connector and clampingly held thereon by the first associatedbinder tie and with said cable body portions disposed about theassociated cable and clampingly held thereon by the second associatedbinder tie, locking structure on the inner surface of each of saidconnector body portions for engagement with the retaining structure onthe associated connector, first binder tie positioning structure on theouter surface of each of said connector body portions and cooperating tohold the first associated binder tie in a predetermined longitudinalposition with respect to said connector body portions, and second bindertie positioning structure on the outer surface of each of said cablebody portions and cooperating to hold the associated second binder tiein a predetermined longitudinal position with respect to said cable bodyportions.

17. The strain relief clamp set forth in claim 16, wherein said hingestructure interconnects said connector body portions.

18. The strain relief clamp set forth in claim 17, wherein said hingestructure includes a pair of hinge members integral with the associatedconnector body portions.

19. The strain relief clamp set forth in claim 18, wherein said strainrelief clamp is molded of a synthetic organic plastic resin with thefree longitudinal edges of said body members disposed in a common planeand interconnected by said hinged structure.

20. A strain relief clamp for use in strain relief clamp assembly tolimit the relative movement between a generally cylindrical connectorhaving retaining structure thereon and a cable of electrical conductorscoupled to the connector wherein the strain relief clamp is held inoperative position by first and second binder ties disposed thereabout,said strain relief clarnp comprising at least two body members eachhaving an essentially part-cylindrical connector body portion and anessentially part-cylindrical cable body portion and an interconnectingportion joining said connector body portion and said cable body portion,said strain relief clamp in use being arranged with said connector bodyportions disposed about the associated connector and clampingly heldthereon by the first associated binder tie and with said cable bodyportions disposed about the associated cable and clampingly held thereonby the second associated binder tie, locking structure on the innersurface of each of said connector body portions for engagement with theretaining structure on the associated connector, and first binder tiepositioning structure on the outer surface of each of said connectorbody portions and cooperating to hold the first associated binder tie ina predetermined longitudinal position with respect to said connectorbody portions, each of said cable body portions having an openingtherein for receiving therethrough the associated second binder tie, thesecond binder tie in use being disposed around and engaging the outersurfaces of sard cable body portions and extending through said openingsand between the conductors of the associated cable for clampinglyholding said cable body portions about the cable at a predetermined position therealong.

21. The strain relief clamp set forth in claim 20, wherein said openingin each of said cable body portions is in the form of an elongated slotextending longitudinally of said strain relief clamp.

22. The strain relief clamp set forth in claim 2i, and furthercomprising a second binder tie positioning structure on the outersurface of each of said cable body portions cooperating to hold theassociated second binder tie in a predetermined longitudinal positionwith respect to said cable body portions.

23. A strain relief clamp assembly for limiting the relative movementbetween a generally cylindrical connector having helical grooves in theouter surface thereof and a cable of electrical conductors coupled tothe connector, said clamp assembly comprising a strain relief clampincluding an essentially part-cylindrical connector body portion and anessentially part-cylindrical cable body portion and an interconnectingportion joining said connector body portion and said cable body portion,said strain relief clamp in use being arranged with said connector bodyportion clampingly engaging the associated connector and said cable bodyportion clampingly engaging the associated cable, locking structure inthe form of interrupted helical ridges on the inner surface of saidconnector body portion shaped complementary to the helical grooves onthe associated connector for engagement therewith, a first binder tiedisposed around and engaging the outer surface of said connector bodyportion for clampingly holding said connector body portion about theassociated connector with said locking structure engaging the retainingstructure, first binder tie positioning structure on the outer surfaceof said connector body portion for holding said first binder tie in apredetermined longitudinal position with respect to said connector bodyportion, a second binder tie disposed around and engaging the outersurface of said cable body portion for clampingly holding said cablebody portion about the cable at a predetermined position therealong, andsecond binder tie positioning structure on the outer surface of saidcable body portion for holding said second binder tie in a predeterminedlongitudinal position with respect to said cable body portion,

24. A strain relief clamp for use in a strain relief clamp assembly tolimit the relative movement between a generally cylindrical connectorhaving helical grooves in the outer surface thereof and a cable ofelectrical conductors coupled to the connector wherein the strain reliefclamp is held in operative position by first and second binder tiesdisposed thereabout, said strain relief clamp comprising an essentiallypart-cylindrical connector body portion and an essentiallypart-cylindrical cable body portion and an interconnecting portionjoining said connector body portion and said cable body portion, saidstrain relief clamp in use being arranged with said connector bodyportion disposed about the associated connector and clampingly heldthereon by the first associated binder tie and with said cable bodyportion disposed about the associated cable and clampingly held thereonby the second associated binder tie, locking structure in the form ofinterrupted helical ridges on the inner surface of said connector bodyportion shaped complementary to the helical grooves on the associatedconnector for engagement therewith, first binder tie positioningstructure on the outer surface of said connector body portion forholding the first associated binder tie in a predetermined longitudinalposition with respect to said connector body portion, and second bindertie positioning structure on the outer surface of said cable bodyportion for holding the associated second binder tie in a predeterminedlongitudinal position with respect to said cable body portion.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No.3,638,169 I Dated January 25, 1972 Inventor(s) JACK E. CAVENEY and ROYA. MOODY It is certified that error appears in the above-identifiedpatent and that said Letters Patent are hereby corrected as shown below:

Claim 3, Column 6, line 45, "2" should be l Claim 7, Column 7, line-44,- "6" should be 5 Claim ll, Column 8, line l2, "10" should be 9 Claim1%, Column 8, line 5O, "13" should be l2 Claim 12:, Column 9, line 41,17" should be l6 Claim 19?, Column 9, line 44, "18" should be 16 Claim22, Column 10, line ll, "21" should be 2O Signed and sealed this 29thday of August 1.972;

(SEAL) Attest:

EDWARD M.FLETCHER,JR. ROBERT GOTTSCHALK Attesting Officer Commissionerof Patents Claim 9 Column .8, line 6, "positioned" should be positionFORM FO-IOSO (10-69) USCOMM-DC 60376-1 69 9 U,S. GOVERNMENT PRINTINGOFFICE: 1959 O366-334 UNITED STATES PATENT OFFICE CERTHHCATE OFCORRECTHMN Patentbm. 3,638,169 Dated January 25, 1972 JACK E. CAVENEYand ROY A. MOODY Inventor(s) It is certified that error appears in theabove-identified patent and that said Letters Patent are herebycorrected as shown below: Column 4, line 40, after "772,441" insert nowabandoned Column 5, line 33, "aid" should be add line 58, "single-body"should be single body Claim 1, Column 6, line 23, "of" should be onClaim ll, Column 8, line 15, "predetermine" should be predeterminedSigned and sealed this 20th day of March 1973.

(SEAL) Attest:

EDWARD M.FLETCHER,JR. ROBERT GOTTSCHALK Attesting Officer Commissionerof Patents F OHM PO-IOSO (10-69) v USCOMM-DC 60376-P69 U.S GOVERNMENTPRINTING OFFICE: I959 O355-334

1. A strain relief clamp assembly for limiting the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector, said clamp assembly comprising a strain relief clamp including an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portion clampingly engaging the associated connector and said cable body portion clampingly engaging the associated cable, locking structure on the inner surface of said connector body portion for engagement with the retaining structure on the associated connector, a first binder tie disposed around and engaging the outer surface of said connector body portion for clampingly holding said connector body portion about the associated connector with said locking structure engaging the retaining structure, first binder tie positioning structure on the outer surface of said connector body portion for holding said first binder tie in a predetermined longitudinal position with respect to said connector body portion, said cable body portion having an opening therein for receiving therethrough a binder tie, and a second binder tie disposed around and engaging the outer surface of said cable body portion and extending through said opening in position to extend between the conductors of the associated cable for clampingly holding said cable body portion about the cable at a predetermined position therealong.
 2. The strain relief clamp assembly set forth in claim 1, wherein said opening in said cable body portion is in the form of an elongated slot extending longitudinally of said strain relief clamp.
 3. The strain relief clamp assembly set forth in claim 2, and further comprising a second binder tie positioning structure on the outer surface of said cable body portion cooperating to hold said second binder tie in a predetermined longitudinal position with respect to said cable body portion.
 4. A strain relief clamp assembly for limiting the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector, said clamp assembly comprising a strain relief clamp including at least two body members each having an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portion clampingly engaging the associated connector and said cable body portion clampingly engaging the associated cable, locking structure on the inner surface of each of said connector body portions for engagement with the retaining structure on the associated connector, a first binder tie disposed around and engaging the outer surfaces of said connector body portions for clampingly holding said connector body portions about the associated connector with said locking structure engaging the retaining structure, first binder tie positioning structure on the outer surface of each of said connector body portions and cooperating to hold said first binder tie in a predetermined longitudinal position with respect to said connector body portions, a second binder tie disposed around and engaging the outer surfaces of said cable body portions for clampingly holding said cable body portions about the cable at a predetermined position therealong, and second binder tie positioning structure on the outer surface of each of said cable body portions and cooperating to hold said second binder tie in a predetermined longitudinal position with respect to said cable body portions.
 5. A strain relief clamp assembly for limiting the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector, said clamp assembly comprising a strain relief clamp including at least two body members each having an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, hinge structure interconnecting said body members and accommodating movement thereof into Positions wherein said connector body portions are arranged in generally cylindrical form and said cable body portions are arranged on the surface of a cylinder, said strain relief clamp in use being arranged with said connector body portions clampingly engaging the associated connector and said cable body portions clampingly engaging the associated cable, locking structure on the inner surface of each of said connector body portions for engagement with the retaining structure on the associated connector, a first binder tie disposed around and engaging the outer surfaces of said connector body portions for clampingly holding said connector body portions about the associated connector with said locking structure engaging the retaining structure, first binder tie positioning structure on the outer surface of each of said connector body portions and cooperating to hold said first binder tie in a predetermined longitudinal position with respect to said connector body portions, a second binder tie disposed around and engaging the outer surfaces of said cable body portions for clampingly holding said cable body portions about the cable at a predetermined position therealong, and second binder tie positioning structure on the outer surface of each of said cable body portions and cooperating to hold said second binder tie in a predetermined longitudinal position with respect to said cable body portions.
 6. The strain relief clamp assembly set forth in claim 5, wherein said hinge structure interconnects said connector body portions.
 7. The strain relief clamp assembly set forth in claim 6, wherein said hinge structure includes a pair of hinge members integral with the associated connector body portions.
 8. The strain relief clamp assembly set forth in claim 5, wherein said strain relief clamp is molded of a synthetic organic plastic resin with the free longitudinal edges of said body members disposed in a common plane and interconnected by said hinge structure.
 9. A strain relief clamp assembly for limiting the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector, said clamp assembly comprising a strain relief clamp including at least two body members each having an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portions clampingly engaging the associated connector and said cable body portions clampingly engaging the associated cable, locking structure on the inner surface of each of said connector body portions for engagement with the retaining structure on the associated connector, a first binder tie disposed around and engaging the outer surfaces of said connector body portions for clampingly holding said connector body portions about the associated connector with said locking structure engaging the retaining structure, first binder tie positioning structure on the outer surface of each of said connector body portions and cooperating to hold said first binder tie in a predetermined longitudinal position with respect to said connector body portions, each of said cable body portions having an opening therein for receiving therethrough a binder tie, and a second binder tie disposed around and engaging the outer surfaces of said cable body portions and extending through said openings in position to extend between the conductors of the associated cable for clampingly holding said cable body portions about the cable at a predetermined positioned therealong.
 10. The strain relief clamp assembly set forth in claim 9, wherein said opening in each of said cable body portions is in the form of an elongated slot extending longitudinally of said strain relief clamp.
 11. The strain relief clamp assembly set forth in claim 10, and further comprising a Second binder tie positioning structure on the outer surface of each of said cable body portions cooperating to hold said second binder tie in a predetermine longitudinal position with respect to said cable body portions.
 12. A strain relief clamp for use in a strain relief clamp assembly to limit the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector wherein the strain relief clamp is held in operative position by first and second binder ties disposed thereabout, said strain relief clamp comprising an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portion disposed about the associated connector and clampingly held thereon by the first associated binder tie and with said cable body portion disposed about the associated cable and clampingly held thereon by the second associated binder tie, locking structure on the inner surface of said connector body portion for engagement with the retaining structure on the associated connector, and first binder tie positioning structure on the outer surface of said connector body portion for holding the first associated binder tie in a predetermined longitudinal position with respect to said connector body portion, said cable body portion having an opening therein for receiving therethrough the associated second binder tie, the second binder tie in use being disposed around and engaging the outer surface of said cable body portion and extending through said opening and between the conductors of the associated cable for clampingly holding said cable body portion about the cable at a predetermined position therealong.
 13. The strain relief clamp set forth in claim 12, wherein said opening in said cable body portion is in the form of an elongated slot extending longitudinally of said strain relief clamp.
 14. The strain relief clamp set forth in claim 13, and further comprising a second binder tie positioning structure on the outer surface of said cable body portion for holding the associated second binder tie in a predetermined longitudinal position with respect to said cable body portion.
 15. A strain relief clamp for use in a strain relief clamp assembly to limit the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector wherein the strain relief clamp is held in operative position by first and second binder ties disposed thereabout, said strain relief clamp comprising at least two body members each having an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portion disposed about the associated connector and clampingly held thereon by the first associated binder tie and with said cable body portion disposed about the associated cable and clampingly held thereon by the second associated binder tie, locking structure on the inner surface of each of said connector body portions for engagement with the retaining structure on the associated connector, first binder tie positioning structure on the outer surface of each of said connector body portions and cooperating to hold the first associated binder tie in a predetermined longitudinal position with respect to said connector body portions, and second binder tie positioning structure on the outer surface of each of said cable body portions and cooperating to hold the associated second binder tie in a predetermined longitudinal position with respect to said cable body portions.
 16. A strain relief clamp for use in a strain reliEf clamp assembly to limit the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector wherein the strain relief clamp is held in operative position by first and second binder ties disposed thereabout, said strain relief clamp comprising at least two body members each having an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, hinge structure interconnecting said body members and accommodating movement thereof into positions wherein said connector body portions are arranged in generally cylindrical form and said cable body portions are arranged as on the surface of a cylinder, said strain relief clamp in use being arranged with said connector body portions disposed about the associated connector and clampingly held thereon by the first associated binder tie and with said cable body portions disposed about the associated cable and clampingly held thereon by the second associated binder tie, locking structure on the inner surface of each of said connector body portions for engagement with the retaining structure on the associated connector, first binder tie positioning structure on the outer surface of each of said connector body portions and cooperating to hold the first associated binder tie in a predetermined longitudinal position with respect to said connector body portions, and second binder tie positioning structure on the outer surface of each of said cable body portions and cooperating to hold the associated second binder tie in a predetermined longitudinal position with respect to said cable body portions.
 17. The strain relief clamp set forth in claim 16, wherein said hinge structure interconnects said connector body portions.
 18. The strain relief clamp set forth in claim 17, wherein said hinge structure includes a pair of hinge members integral with the associated connector body portions.
 19. The strain relief clamp set forth in claim 18, wherein said strain relief clamp is molded of a synthetic organic plastic resin with the free longitudinal edges of said body members disposed in a common plane and interconnected by said hinged structure.
 20. A strain relief clamp for use in strain relief clamp assembly to limit the relative movement between a generally cylindrical connector having retaining structure thereon and a cable of electrical conductors coupled to the connector wherein the strain relief clamp is held in operative position by first and second binder ties disposed thereabout, said strain relief clamp comprising at least two body members each having an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portions disposed about the associated connector and clampingly held thereon by the first associated binder tie and with said cable body portions disposed about the associated cable and clampingly held thereon by the second associated binder tie, locking structure on the inner surface of each of said connector body portions for engagement with the retaining structure on the associated connector, and first binder tie positioning structure on the outer surface of each of said connector body portions and cooperating to hold the first associated binder tie in a predetermined longitudinal position with respect to said connector body portions, each of said cable body portions having an opening therein for receiving therethrough the associated second binder tie, the second binder tie in use being disposed around and engaging the outer surfaces of said cable body portions and extending through said openings and between the conductors of the associated cable for clampingly holding said cAble body portions about the cable at a predetermined position therealong.
 21. The strain relief clamp set forth in claim 20, wherein said opening in each of said cable body portions is in the form of an elongated slot extending longitudinally of said strain relief clamp.
 22. The strain relief clamp set forth in claim 21, and further comprising a second binder tie positioning structure on the outer surface of each of said cable body portions cooperating to hold the associated second binder tie in a predetermined longitudinal position with respect to said cable body portions.
 23. A strain relief clamp assembly for limiting the relative movement between a generally cylindrical connector having helical grooves in the outer surface thereof and a cable of electrical conductors coupled to the connector, said clamp assembly comprising a strain relief clamp including an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portion clampingly engaging the associated connector and said cable body portion clampingly engaging the associated cable, locking structure in the form of interrupted helical ridges on the inner surface of said connector body portion shaped complementary to the helical grooves on the associated connector for engagement therewith, a first binder tie disposed around and engaging the outer surface of said connector body portion for clampingly holding said connector body portion about the associated connector with said locking structure engaging the retaining structure, first binder tie positioning structure on the outer surface of said connector body portion for holding said first binder tie in a predetermined longitudinal position with respect to said connector body portion, a second binder tie disposed around and engaging the outer surface of said cable body portion for clampingly holding said cable body portion about the cable at a predetermined position therealong, and second binder tie positioning structure on the outer surface of said cable body portion for holding said second binder tie in a predetermined longitudinal position with respect to said cable body portion.
 24. A strain relief clamp for use in a strain relief clamp assembly to limit the relative movement between a generally cylindrical connector having helical grooves in the outer surface thereof and a cable of electrical conductors coupled to the connector wherein the strain relief clamp is held in operative position by first and second binder ties disposed thereabout, said strain relief clamp comprising an essentially part-cylindrical connector body portion and an essentially part-cylindrical cable body portion and an interconnecting portion joining said connector body portion and said cable body portion, said strain relief clamp in use being arranged with said connector body portion disposed about the associated connector and clampingly held thereon by the first associated binder tie and with said cable body portion disposed about the associated cable and clampingly held thereon by the second associated binder tie, locking structure in the form of interrupted helical ridges on the inner surface of said connector body portion shaped complementary to the helical grooves on the associated connector for engagement therewith, first binder tie positioning structure on the outer surface of said connector body portion for holding the first associated binder tie in a predetermined longitudinal position with respect to said connector body portion, and second binder tie positioning structure on the outer surface of said cable body portion for holding the associated second binder tie in a predetermined longitudinal position with respect to said cable body portion. 